I am expecting to recieve a 8lb fiberglass maul
A lot of this is personal preference, but for me, the only non-wood handle I've ever found I liked is the one on the fiskars.
Last time I bought a sledge I picked up a 10lb one w/ a fiberglass handle. Still regret it to this day. No problem with durability, but simply feels like poo as it strikes something.
As far as the fiskars go, the cabin I cut most of my firewood at ends up having upwards of 30 cord of firewood processed on it each year. Up until 2 years ago, everyone used a difference choice of tool. 1 used my trusted 8lb maul that used to belong to my grandfather. A buddy has a more modern 8lb maul which was more blunt in design. 2 others used a 6lb maul, and another used a 12lb (or whatever the heck the sucker is) old monster maul. From time to time, there was a Chopper 1 that would get thrown in the mix and also sledge and wedge for the nasty stuff of course, various axes, etc.
After reading all the positive reviews for the fiskars on amazon, I asked for 1 for my birthday, determined that the folks using that measly 4.5 lb axe were inexperienced / city slickers / whatever. I couldn't rationalize any way that it could work any better than any other tool that size. The x27 hadn't come out yet so I received the x25. I proceeded to head outside and blow through my pile of "uglies" and was completed surprised. At this point, since it was merely the first day I tried it, I didn't tell anyone of the success as I was still certain it was a fluke. A few months go by, and I split a few more face cord with it. Was again impressed. While doing this, I kept switching back and forth between it and my other tools, trying to do an honest comparison. At the end of each session the x25 kept coming up on top through a variety of different wood.
Fast forward a few months later, and (I still hadn't even posted a review on hearth.com yet) I finally decided to hand it off to a buddy while bs-ing after a cutting session. We weren't splitting but just told him to take a few whacks. We kept shooting the bull, he never commented and just handed it back to me. A week later, he hands me an x27 (just came out on the market). He ended up buying 6 in total and handing them out to this father in law, himself, me, and a few other buddies (the same ones mentioned above using a variety of different tools).
Fast forward to today, with probably 60 cord of wood on our x27's, and the only time any of us end up using our old favorites is if someone forgets to put their x27 in the truck.
But again, that's my group's experience after a pretty thorough testing IMO, as with any tool, everyone winds up with their own preferences.
pen